Tongue for a boot, and boot provided with such tongue

ABSTRACT

A boot provided with a tongue, the tongue having a lower portion and an upper portion joined by an intermediary portion. The tongue has a main flexible panel to which a semi-rigid reinforcement is affixed, the reinforcement having an elongated body that extends substantially along a longitudinal median line and over the length of the panel, the reinforcement having at least one lateral extension, each extension originating from the elongated body in the area of the lower and/or upper portion, and extending at least partially up to the area of the intermediary portion.

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is based upon French Patent Application No. 01 09960, filed Jul. 20, 2001, the disclosure of which is hereby incorporated by reference thereto in its entirety, and the priority of which is hereby claimed under 35 U.S.C. §119.

BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The invention is directed to a tongue adapted to cover the instep and a portion of the user's lower leg in a boot with a high upper, particularly for a boot of the flexible type. The invention is also directed to the boot provided with the tongue. The invention is more specifically directed to a tongue, and a boot incorporating such tongue, adapted to practicing a sport.

[0004] Such a boot can be used in a field such as snowboarding, skiing, water skiing, snowshoeing, roller skating, ice skating, skateboarding, mountain climbing, walking, or the like.

[0005] 2. Description of Background and Relevant Information

[0006] Traditionally, in the field of snowboarding, a flexible boot includes a sole and a high upper. The upper has an opening, extended by a slit to ease the passage of a user's foot. Here, a flexible upper designates an upper made from materials that are not completely rigid, and that allow a certain bending of the leg.

[0007] The slit extends between a lateral quarter and a medial quarter of the boot. The slit allows a relative spacing of the quarters from one another. A tongue blocks the slit at least partially when the quarters are brought close together.

[0008] Because the tongue is flexible, the upper portion of the upper can bend easily, particularly toward the front. This allows the user to bend the lower leg easily toward the front.

[0009] It has been proposed to reinforce the tongue by means of a reinforcement that extends substantially over the length of a flexible panel of the tongue in order to limit the forward bending of the upper and of the lower leg. Towards that end, the reinforcement is made of a semi-rigid or rigid frame having at least one bending zone. An abutment limits the bending value of the reinforcement and, consequently, of the upper.

[0010] In the reinforcement, before the action of the abutment, only the bending zone becomes deformed. Thus, the tongue adapts itself to the deforming of the upper.

[0011] As soon as the abutment acts, the entire reinforcement opposes a forward bending of the upper. A much more substantial bending force is then required in order to continue the bending of the upper.

[0012] The reinforcement avoids or substantially reduces the risk of excessive forward bending of the lower leg. Thus, certain shocks are avoided or are less serious. The reinforcement also gives the user a support that allows a better transmission of sensory information.

[0013] Nevertheless, it has been noted that it is difficult to anticipate the action of the abutment. The activation of the latter is relatively abrupt, which oftentimes hinders the steering of the board.

SUMMARY OF THE INVENTION

[0014] In particular, the invention has an object of making progressive the passage of the tongue, and of the boot provided with the tongue, from a flexible state to a more rigid state.

[0015] For the purpose of achieving this object, the invention proposes a boot having a sole and a high upper, the upper having an upper opening extended forwardly by a slit, a tongue blocking the slit, the tongue having a lower portion and an upper portion corresponding to the instep and to the lower leg, respectively, of a user wearing a boot provided with the tongue, the lower and upper portions being connected by an intermediate portion.

[0016] The tongue of the boot has a main flexible panel to which a semi-rigid reinforcement is affixed, the reinforcement having an elongated body that extends substantially along a longitudinal median line and over the length of the panel, the reinforcement having at least one extension, each extension originating from the elongated body in the area of the lower and/or upper portion, and extending at least partially up to the area of the intermediate portion.

[0017] The invention also relates to the tongue and to the reinforcement. By taking support on the lateral and medial quarters of the upper, the lateral and medial extensions of the reinforcement make the tongue conform substantially to the shape of the upper. As a result, the tongue remains concave in a transverse plane, in the area of the intermediate portion, on the side of its inner surface.

[0018] This concave shape of the intermediate portion directly influences the bending rigidity of the tongue.

[0019] Without a tightening of the upper, the extensions can distance themselves, which consequently allows the forward bending of the tongue and of the upper.

[0020] When the upper is tightened, the extensions are transversely maintained, which slightly tensions the panel. The latter remains in tension when the lower leg tends to bend forwardly, with the tension being proportionate to the bending force.

[0021] This is the reason why the passage from a flexible state to a more rigid state of the tongue is progressive. The rigidity is proportionate to the bending force and correlates to the tightening of the upper.

[0022] Since the user perceives the progressive variation of the rigidity of the tongue, he can advantageously anticipate the level of maximum rigidity. As a result, he is not taken by surprise, and it is easier to steer the board.

[0023] Another advantage provided by this tongue is a progressive shock absorbing effect of the forward bending movements. This avoids or dampens certain shocks or certain vibrations. The articulation of the ankle is better protected.

BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features and advantages of the invention will be better understood from the following description, with reference to the attached schematic drawings showing a non-limiting example of how the invention can be embodied, and in which:

[0025]FIG. 1 is a front perspective view of a boot according to an embodiment of the invention;

[0026]FIG. 2 is a front perspective view of the tongue of the boot of FIG. 1;

[0027]FIG. 3 is a front view of the tongue;

[0028]FIG. 4 is a side view of the tongue.

DETAILED DESCRIPTION OF THE INVENTION

[0029] An embodiment of the invention, which is described hereinafter with reference to FIGS. 1-4, relates more particularly to a snowboard boot. The invention, however, applies to other fields, such as those mentioned above.

[0030] As shown in FIG. 1, a snowboard boot 1 is provided to receive the user's foot. In a known manner, the boot 1 has a sole 2 and an upper 3. The boot 1 extends lengthwise between a heel 4 and a front end 5, and widthwise between a lateral side 6 and a medial side 7. The upper 3 has a lower portion 10 provided to surround the foot, and an upper portion 11 provided to surround a portion of the lower leg.

[0031] The boot 1 is structured to allow a good foot rolling movement when walking, as well as a tilting of the lower leg when steering a board. That is the reason why the sole 2 and the upper 3 are relatively flexible.

[0032] An upper opening 12 of the upper 3 is extended forwardly by a slit 13, the latter extending between a lateral quarter 14 and a medial quarter 15 of the upper 3. The slit 13 allows a relative spacing of the quarters 14, 15 from one another, which makes it easier to put the boot on or take it off.

[0033] A tightening means of the type having a lace or the like allows the tightening the upper 3, as well as untightening.

[0034] The tightening means, for example, has low keepers 20 that are spread out over the lateral 14 and medial 15 quarters, and optionally at the base 21 of the slit 13.

[0035] Each of the low keepers is shown in the form of a loop, made by folding a strap portion, in which a bushing having a low coefficient of friction can be housed. Alternatively, other types of keepers can be used.

[0036] The tightening means also has high keepers 22 spread out over the upper portion 11 of the upper 3, on the lateral side 6 and on the medial side 7. The high keepers 22 are shown in the form of hooks.

[0037] It is to be understood that other structures could be provided to obtain the low 20 and high 22 keepers.

[0038] The tightening means also has a lace 23 that follows a path set by the keepers 20, 22. For example, the lace 23 alternatively connects a keeper located on the lateral side 6 to a keeper located on the medial side 7, in the lower portion 10 as well as in the upper portion 11 of the upper 3. The lace 23 also traverses the low keeper 20 located at the base 21.

[0039] Alternatively, other paths could be envisioned for the lace 23. In any case, a tensioning of the lace 23 allows a tightening of the upper 3, by bringing close together the lateral 14 and medial 15 quarters of the upper 3.

[0040] Other structures could be provided for the tightening means, such as a series of loops associated with levers on one side of the boot, and hooks for receiving the loops on the other side of the boot.

[0041] In order to block the slit 13, a tongue 30 extends substantially from the base 21 of the slit 13 up to the top of the upper 3.

[0042] As shown in FIG. 2, the tongue 30 extends longitudinally from a lower end 31 to an upper end 32, and transversely from a lateral edge 33 to a medial edge 34.

[0043] The tongue 30 has an inner surface 35, turned inwardly toward the upper 3 when it is arranged in the area of the slit 13.

[0044] Similarly, the tongue 30 has an outer surface 36, turned outwardly of the upper 3 when it is arranged in the area of the slit 13.

[0045] Between the lower end 31 and the upper end 32, the tongue 30 has a lower portion 40 and an upper portion 41 corresponding to the instep and lower leg, respectively, of the user wearing the boot I provided with the tongue 30.

[0046] The lower 40 and upper 41 portions are connected by an intermediate portion 42.

[0047] The tongue 30 has a main flexible panel 45, the periphery of which is formed by the lower end 31, the lateral edge 33, the upper end 32 and the medial edge 34. The flexible panel 45 is made preferably of one or several layers of non-extensible flexible materials, for instance, fabric, leather, plastic, or the like.

[0048] The tongue 30 also has a reinforcement 46 that is affixed to the main panel 45 by a means shown in the form of a stitching 47. The latter is peripheral to the reinforcement 46.

[0049] It is to be understood that any other affixing means could be used, such as gluing or welding, or a mounting that is removable by means of pockets or the like.

[0050] The reinforcement 46 is preferably arranged over the panel 45, i.e., on the side of the outer surface 36 of the tongue 30. However, it could have been arranged underneath, on the side of the inner surface 35, or integrated into the thickness of the panel 45.

[0051] The reinforcement 46 has an elongated body 48 that extends substantially along a longitudinal median line L of the panel 45, and substantially over the length of the panel 45.

[0052] The reinforcement 46 is semi-rigid. Preferably, it is constituted of plastic that gives it a rigidity greater than that of the panel 45, but nevertheless allows reversible deformations during a bending of the tongue 30. This is seen particularly in the area of the intermediary portion 42 of the tongue 30.

[0053] According to the invention, the reinforcement 46 has a lateral extension 60 and a medial extension 61, each extension 60, 61 originating from the elongated body 48 at the level of the lower portion 40 and extending at least partially up to the area of the intermediary portion 42.

[0054] It could be provided, of course, that one or both extensions 60, 61 come from the elongated body 48, in the area of the upper portion 41 of the tongue 30. Furthermore, a single extension 60, 61 could be provided.

[0055] As seen better in FIG. 3, the reinforcement 46 is preferably symmetrical with respect to the median L, but it could also be asymmetrical depending on the desired effects.

[0056] The extensions 60; 61 are connected to the body 48 at their respective bases 62, 63, in the same area in the lower portion 40.

[0057] In this same context, the respective ends 64, 65 of the extensions are located at the same longitudinal level, in the area of the intermediary portion 42.

[0058] Each extension 60, 61 extends along the panel 45, both toward the upper end 32 and toward the lateral 33 or medial 34 edge, respectively, of the tongue 30. Each extension 60, 61 lengthens the body 48 of the reinforcement 46 much like the wings lengthen the body of a swallow.

[0059] As is better understood by means of FIG. 4, the tongue 30 is concave in a transverse plane, in the area of the intermediary portion 42, on the side of the inner surface 35. Naturally, the transverse plane is substantially perpendicular to the median line L.

[0060] The structure of the tongue is such that the lateral 60 and medial 61 extensions are each substantially located at the base of the concave portion of the intermediary portion 42, and the elongated body 48 passes through the apex of this portion.

[0061] The tongue 30 is also concave in a longitudinal plane, in the area of the intermediary portion 42, on the side of the outer surface 36. This structure of the tongue 30 allows it to conform to the shapes of the user's instep and front part of the lower leg.

[0062] When the latter bends the lower leg forwardly, the upper 3 tends to bend forwardly. As a consequence, the upper end 32 of the tongue tends to come closer to the lower end 31.

[0063] When the tightening means maintains the upper 3 closed and tight, the lateral 14 and medial 15 quarters of the upper 3 press on the lateral 60 and medial 61 extensions of the reinforcement 46.

[0064] Since the semi-rigid extensions 60, 61 are affixed to the flexible panel 45, they naturally put the latter under a slight tension.

[0065] Consequently, a forward bending force exerted on the tongue 30 increases the tension of the portions of the flexible panel 45 that are between an extension 60, 61 and the upper end 32. Since the panel 45 is substantially inextensible, the greater the forward bending force, the more the flexible panel 45 is tensioned. In a forward bending, the rigidity of the tongue 30 is therefore proportional to the bending force.

[0066] The reaction exerted by the tongue 30 on the lower leg will therefore vary progressively.

[0067] This is true to a certain limit depending on the physical characteristics of the tongue.

[0068] Thus the user can better anticipate the behavior of the board. Additionally, the tongue 30 promotes shock absorption.

[0069] When the tightening means no longer tightens the upper 3, or is looser, the rigidity of the tongue 30 is reduced.

[0070] The user can adjust the rigidity of the tongue 30 and consequently of the upper 3 by adjusting the tightening of the upper. This enables him or her, for example, to adapt the boot to a type of steering.

[0071] Generally speaking, the invention is embodied with materials and according to implementing techniques that are known to those skilled in the art.

[0072] The invention is not limited to the example described hereinabove, and includes all technical equivalents that fall within the scope of the following claims.

[0073] Specifically, numerous forms can be given to the lateral 60 and medial 61 extensions, such as that of an elongated tree leaf, a flat ruler, or the like.

[0074] The body of the tongue reinforcement can be of a variable length and of a variable thickness.

[0075] The reinforcement can have a plurality of lateral and medial extensions.

[0076] The reinforcement is not necessarily symmetrical along a longitudinal median line. 

What is claimed is:
 1. A boot comprising: a sole; a high upper, the upper having an upper opening extended forwardly by a slit; a tongue blocking the slit, the tongue having a lower portion and an upper portion corresponding to an instep and lower leg, respectively, of a user wearing the boot, the lower and upper portions of the tongue being connected by an intermediary portion; the tongue having a main flexible panel, a semi-rigid reinforcement being affixed to the main flexible panel, the reinforcement having an elongated body extending substantially along a longitudinal median line and over a length of the panel, the reinforcement having at least one extension, each extension originating from the elongated body in an area of the lower and/or upper portion, and extending at least partially up to an area of the intermediary portion.
 2. A boot according to claim 1, wherein the upper is a flexible upper.
 3. A boot according to claim 2, wherein each extension originates from the elongated body in an area of the lower portion.
 4. A boot according to claim 3, wherein each extension extends along the length of the panel, both towards an upper end and towards a lateral or medial edge, respectively, of the tongue.
 5. A boot according to claim 2, wherein the reinforcement is substantially symmetrical with respect to the longitudinal median line.
 6. A boot according to claim 2, wherein each extension has substantially the shape of an elongated tree leaf.
 7. A boot according to claim 2, wherein the reinforcement is arranged on the side of the outer surface of the tongue.
 8. A boot according to claim 2, wherein the reinforcement is affixed to the panel by stitching.
 9. A boot according to claim 2, wherein the flexible panel has at least one layer of inextensible fabric, and wherein the reinforcement is made from plastic.
 10. A tongue for a boot, said tongue comprising: a lower portion and an upper portion corresponding to an instep and lower leg, respectively, of a user wearing a boot provided with the tongue, the lower and upper portions being joined by an intermediary portion; a main flexible panel and a semi-rigid reinforcement affixed to the main flexible panel, the reinforcement having an elongated body extending substantially along a longitudinal median line and over the length of the panel, the reinforcement having at least one extension, each extension originating from the elongated body in an area of the lower and/or upper portion, and extending at least partially up to an area of the intermediate portion.
 11. A reinforcement for a tongue of a boot, said reinforcement comprising: a lower portion and an upper portion corresponding to an instep and lower leg, respectively, of a user wearing a boot provided with the tongue, the lower and upper portions being joined by an intermediary portion; the reinforcement being semi-rigid and having an elongated body extending substantially along a longitudinal median line, the reinforcement having at least one extension, each extension originating from the elongated body in an area of the lower and/or upper portion, and extending at least partially up to an area of the intermediary portion. 